Compilare: user.cpp:8: warning: ‘typedef’ was ignored in this declaration user.cpp: In function ‘int main()’: user.cpp:211: warning: suggest parentheses around assignment used as truth value user.cpp:191: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:199: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:201: warning: ‘a’ may be used uninitialized in this function user.cpp:201: warning: ‘b’ may be used uninitialized in this function